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State of California AIR RESOURCES BOARD

EXECUTIVE ORDER D—133—4 Relating to Exemptions under Section 27156 of the Vehicle Code

REDLINE, INC. A SUBSIDIARY OF IMPAC REDLINE CARBURETOR EXCHANGE KIT NO. K8055 USING ONE (1) WEBER MODEL 32/36 DGEV33B1 CARBURETOR

Pursuant to the authority vested in the Air Resources Board by Section 27156 of the Vehicle Code; and

Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the Health and Safety Code and Executive Order G—45—5;

IT IS ORDERED AND RESOLVED: That the installation of the Redline Carburetor Exchange Kit No. K8055 using one (1) Weber model 32/36 DGEV3381 carburetor has been found not to reduce the effectiveness of required motor vehicle pollution control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Vehicle Code for 1968 through 1974 mode1-year MGB vehicles equipped with 1.8 "B" series engines.

This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different from those submitted by the device manufacturer.

Changes made to the design or operating conditions of the device, as exempted by the Air Resources Board, that adversely affect the performance of a vehicle‘s pollution control system shallvinva1idate this Executive Order.

Marketing of this device using an identification other than that shown in this Executive Order or marketing of this device for an application other than those listed in this Executive Order shall be prohibited unless prior approval is obtained from the Air Resources Board. Exemption of a kit shall not be construed as an exemption to sell, offer for sale, or advertise any component of a kit as an individual device.

This Executive Order does not constitute any opinion as to the effect that the use of this device may have on any warranty either expressed or implied by the vehicle manufacturer.

THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, .OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY CLAIMS OF.THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF THE REDLINE CARBURETOR EXCHANGE KIT NO K8055. REDLINE, INC, . i , EiECUTIVE ORDER D—133—4 (Page 2 of 2?) Do

No claim of any kind, such as "Approved by Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication.

Section 17500 of the Business and Professions Code makes untrue or misleading advertising unlawful, and Section 17534 makes violation punishable as a misdemeanor.

Section 43644 of the Health and Safety Code provides as follows: "43644. (a) No person shall install, sell, offer for sale, or advertise, or, except in an application to the state board for certification of a device, represent, any device as a motor vehicle pollution control device for use on any used motor vehicle unless that device has been certified by the state board. No person shall sell, offer for sale, advertise, or represent any motor vehicle pollution control device as a certified device which, in fact, is not a certified device. Any violation of this subdivision is a misdemeanor."

Any apparent violation of the conditions of this Executive Order will be submitted to the Attorney General of California for such action as he deems advisable. _‘

Executed at E1 Monte, California, this ’C}gl day of September, 1985. BobCoa hb

K. D. Drachand, Chief Mobile Source Division State of California AIR RESOURCES BOARD

EVALUATION OF THE REDLINE CARBURETOR EXCHANGE KIT NO. K8055 USING ONE (1) MODEL 32/36 DGEV33B1 WEBER CARBURETOR FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE CALIFORNIA ADMINISTRATIVE CODE

SEPTEMBER, 1985 EVALUATIQN OF THE REDLINE CARBURETOR EXCHANGE KIT NO. K8055 USING ONE (1) MODEL 32/36 DGEV33B!1 WEBER CARBURETOR FOR EXEMPTION FROM THE PROHIBITIONS OF VEKHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE CALIFORNIA ADMINISTRATIVE CODE

by

Mobile Source Division State of California AIR RESOURCES BOARD 9528 Telstar Avenue E1 Monte, CA 91731

(This report has been reviewed by the staff of the California Air Resources Board and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Air Resources Board, nor does mention of trade names or commerical products constitute endorsement or recommendation for use.) SUMMARY

Redline, Inc., a distributor of Italian made Weber carburetors, has applied for exemption from the prohibitions of Vehicle Code Section 27156 for the Redline Carburetor Exchange Kit No. K8055 using one (1) Weber model 32/36

DGEV33B1 carburetor.

The Redline Carburetor Exchange Kit replaces the original equipment dual

S.U. HIF 1—Barrel carburetors on 1968—74 model—year MGB vehicles. The original equipment air cleaner is not retained in the Redline Kit installation. The Redline Carburetor Exchange Kit utilizes an open type air cleaner which the staff has determined does not increase evaporative emissions. A delay valve is added to the gulp valive vacuum control line so that the gulp valve functions pfoperly with the Weber carburetor. An anti— dieseling solenoid is installed in the idle circuit of the Weber carburetor to prevent the engine from running on after the engine has been shut off.

Comparative exhaust emission tests demonstrate that the aftermarket

Redline Carburetor Exchange Kit No. K8055 using Weber model 32/36 DG@EV33B1 carburetor does not adversely affect emissions. Based on the results of the tests and the evaluation of the Redline Carburetor Exchange Kit, the staff recommends that the exemption be granted as requested for the 1968—74 model—year MGB vehicles equipped with 1.8L "B" series engines. CONTENTS

Page Number

SUMMARY i. contENTs 1. T. INTRODUCTION ' 1. II. Conclustons 1. ITI. RECOMMENDATIONS 1. IV. DEVICE DESCRIPTION 2. V.o EVALUATION PROGRAM 3. vI. DISCUSSTON 4.

APPENDIX — Carburetor Diagrams

HIF $.U. 1—Barrei A—1 _ Weber DGEV33B1 A—2 —

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i1. EVALUATION OF THE REDLINE CARBURETOR EXCHANGE KIT NO. K8055 USING MODEL 32/36 DGEV33B1 WEBER CARBURETOR FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE CALIFORNIA ADMINISTRATIVE CODE

I. INTRODUCTION

Redline, Inc. of Torrance, California, a subsidiary of Imported Parts and Accessories Corporation (IMPAC), is a distributor of Italian—made Weber carburetors. The company has applied for exemption from the prohibitions of Vehicle Code Section 27156 for a Carburetor Exchange Kit designated as Redline

Kit No. K8055 utilizing one (1) Weber model 32/36 DGEV33B1 carburetor. The

Carburetor Exchange Kit is designed to replace the original equipment manufacturer (OEM) dual S.U. HIF T—Barrel carburetors as found on 1968—1974 model—year MGB vehicles equipped with 1.81 "B" series engines.

This report describes the evaluation of the Redline Carburetor Exchange

Kit and the findings. I1. CONCLUSIONS

Comparative exhaust emission data and other information submitted by the applicant demonstrated that the Redline kit using one (1) Weber mode! 32/36

DGEV33B1 carburetor meets the Air Resources Board (ARB) requirements for exemption from the prohibitions of Vehicle Code Section 27156. III. RECOMMENDATIONS

Based on the submitted comparative data of the Redline Carburetor

Exchange Kit, the staff recommends that Redline, Inc. be granted exemption from the prohibitions of Vehicle Code Section 27156 for the Redline Carburetor

Exchange Kit No. K8055 using one (1) model 32/36 DGEY33B1 Weber carburetor for

1968—74 model—year vehicles equipped with 1.8L "B" series engines. IV. DEVICE DESCRIPTION

The RedTine Carburetor Exchange Kit No. K8055 uses one (1) Weber model

32/36 DGEV33B1 carburetor to replace the OEM dual S.U. HIF 1—Barre] carburetors. The S.U. HIF 1—Barrel is a single barrel sidedraft carburetor; its venturi area is automatically changed according to engine air intake. The amount of fuel passing through the main jet is governed by a tapered needle which moves proportional to the engine air intake. A choke valve and auxiliary nozzle are used for cold starting. Main components of the carburetor consist of: a float chamber, suction chamber, suction piston, piston damper, metering needle and jet, throttle valve body, choke valve and auxiliary nozzle (See Appendix A).

The Weber 32/36 DGEV33B1 carburetor is a progressive two—barrel down draft design (see Appendix A). The Weber carburetor uses a mechanically— operated secondary which starts to open after the primary throttle opens approximately 68 percent. A diaphram type accelerator pump is actuated by throttle movement and injects fuel into the primary barrel. The Weber is fitted with an anti—dieseling valve in the idle circuit which shuts off the fuel supply to the idle circuit whenever the ignition is switched off. The addition of this anti—dieseling valve upgrades the emission control of the MGB vehicles since the OEM carburetors were not equipped with such a device.

The DGEVY model Weber carburetor is fitted with an electric choke which is more accurate and consistent than the manual choke used on the OEM carburetors.

Included in the Redline kit is the Weber carburetor, intake manifold, air cleaner, throttle linkage, and all necessary hoses, clamps and fasteners needed to install the Weber carburetor correctly. W INSTALLATION INSTRUCTIONS um WEBER

READ & UNDERSTAND ALL STEPS OF THESE INSTRUCTIONS BEFORE BEGINNING THIS INSTALLATION. After unpacking, examine the carburetor and other components for shipping damage. If any damage is found, notify shipper/ supplier immediately.

MGB (19568 — 1974) 1.8 Litre Eng. For Kit Nos. K8055, 52—55202 Using (1) Weber 32/36 DGAV—33B1 Carburetor

TOOLS AND EQUIPMENT PARTS SUPPLIED WITH NEEDED: ‘ INSTALLATION KIT

Combination, box or open end wrenches ({metric) 1 — Hardware Kit Socket set with 12 mm socket 1 — Intake Manifold Screwdriver (regular and Phillips) 1 — Weber 32/36 DGAV—33B1 Carburetor Pliers 1 — Air Filter Assembly Gasket Scraper Rags Note: A new fuel filter should be installed Cleaning Solvent with this kit. Knife

TUNE—UP SPECIFICATIONS All tune—up specifications for the Weber Carburetor remain the same as those specified by the Factory, EXCEPT FOR IDLE MIXTURE AND DISTRIBUTOR ADVANCE SETTINGS. Emissions tune—up should be carried out by a suitably qualified Dealer or Independent garage, using infrared gas analyzing equipment. Ignition Timing: 6° BTDC @ 850 RPM (with vacuum line removed) Idie Mixture: 2.5% £.5% CO NOTE: Late model vehicles fitted with Emission Control Systems have many vacuum lines and electri— cal connections in their fuel systems. It is essential when dismantling, that disconnected lines be identified with a corresponding number tag or label system. To establish function, locate and identify the source of each line.

1. Remove the vehicie‘s gas cap. 5. Disconnect the vent hose from the carbure— * tor to the charcoal canister. 2. Disconnect the battery. 6. Disconnect the crankcase vent hose. 3. CAUTION: ENGINE SHOULD BE COLD 7. Remove the stock choke cable. BEFORE PERFORMING THIS STEP. Drain the engine coolant from the radiator into a 8. Disconnect the throttle cable and fuel line. suitable container. Plug the end of the fuel line to prevent any 4. Remove the stock air filter and attached leakage. hoses.

This is sold under the provisions of California Air Resources Board Executive Order No. D—133—4 (C.A.R.B. £.0. No. D—1 33— 4 Products with C.AR.B. E.0. numbers are exempt from the prohibitions of Section 27156 of the California Vehicle Code. Performance kits so noted are legal for use on public highways in California. WEBER DISTRIBUTION . Remove the nuts and washers retaining the carburetors to the intake manifold.

10. Remove the carburetors and the linkage as one unit. Remove the plastic heat insulators T PC from the intake manifold. FIG. B charcoaL 11. Remove the metal heat shield and throttle < CcanistEn cable bracket. vacuum FitTing

12. Remove the Guip Valve and hose from the stock intake manifold. (Fig. A)

< omng

<——— waten .’\V a /é% Housing STUD ———>

WaSHER —> | NYLOC NUT —p Q <— outier Hose

(B) install the 4 carburetor studs in the mounting flange of the new manifold using the locking compound provided. FIG. A (C) Install the flange gasket, carburetor and throttle cable bracket as shown in Fig. A. Secure the carburetor and bracket in place using the lockwashers and nuts provided in the kit. Do Not over tighten the carburetor nuts.

(D) Install the throttle cable trunion on the carburetor as shown in Fig. B.Do nottighten 13. Remove the distributor advance hose and the throttle cable trunion nut completely. plug the distributor vacuum diaphragm using Some free movement should be present to one of the rubber plugs provided in the kit. prevent bending the cable. (Refer to the front page of these instructions and the under hood decal for new timing (E) Install the throttle return spring bracket specifications.) on the choke diaphragm. Install the return spring provided in the kit. 14. Remove the washers and nuts securing the 17. Remove the intake manifold in place. Retain these parts rags from the intake ports and for later use. install the intake manifold and carburetor using the original washers and nuts. Install 15. Remove the intake and exhaust manifolds. the new intake/exhaust gasket supplied in Insert a clean rag in the intake ports to kit. Use a suitable gasket sealing compound prevent dirt from entering the engine. Remove on the intake gasket. any excess dirt and oil from the manifold 18. Install the Guip Valve hose fitting from the kit mounting area with a gasket scrapper. in the front (# 1/2 runner)on the new intake 16. BENCH ASSEMBLY (Fig. F) Install the charcoal canister vacuum purge fitting in the rear location. (Fig. B) If (A) Install the water housing to the bottom your vehicle is not equipped with either of of the new intake manifold using the stud, these fittings, plugs are provided in the kit. aluminum washer, o—ring seal and nyloc nut (BE SURE TO USE LOCKTITE WHEN provided in the kit. (Fig. B) INSTALLING PLUGS.

I 1 sowi vent _———»| |

vacuum becay varve (Brack sibe (2> / // Towanns cuce CC vauve) / /m FUEL LNE

24. Reconnect the fuel line and the charcoal 19. Disconnect and remove the metal heater canister hose to the bow! vent fitting core line that runs along the top of the valve on the carburetor. cover. (Fig.C) Install the water hose CAUTION: Do not reverse the fuel line extender from the kit in the front heater core and bow! vent connections. (Fig. E) hose. Using the hose from the kit route the hoses as shown in Fig. B Hose clamps are provided in the kit.

20— Install the throttle cable jacket in the bracket and route the cable thru the trunion. Tighten cus the trunion set screw to secure the cable in vaave —» emma place. risow cor *~ ancamien nose 21. Check Throttle operation for free move— <— ruel muer eirting ment. Ifthere is any indication of sticking or binding, correct as necessary before proceeding. FIG. E «

22.Connect the vacuum hose forthe charcoal canisterto the rear fitting in the intake 25— Connect the wire loom supplied in the kit to manifold. Connect the large hose for the Gulp the choke element and idle cut—off solenoid. Valve to the front fitting. Connect the remaining end of the wire to an ignition activated 12v source.

26. Refill the radiator and reconnect the battery. 23, Install the plastic tee in the charcoal canister vacuum line. Cut a 4" piece of vacuum line 27. Install the plastic elbow supplied with the air supplied in the kit and install it on the tee. filter to the underside of the filter base. Install the vacuum delay vaive with the Black Install the filter assembly and connect the side towards the Gulp Vaive. Connect the breather hose to the elbow fitting. delay valve to the top of the Gulp Valve using the remaining hose from the kit.(Fig. D) 28. Replace the gas cap.

29. Start the engine and check for vacuum and fuel leaks. Correct as necessary before proceeding.

30. Apply the Tune—Up Specifications decal supplied in the kit next to the original decal in the engine compartment of the vehicle. Adjust the vehicle to the specifications on the new decal. 31. Check for adequate hood clearance before closing hood.

32. The automatic choke on this carburetor is activated by depressing throttle pedal twice slowly and then ignition key is activated.

DGV/DGAV LEAN BEST IDLE SETTING PROCEDURE

NOTE: Before adjusting carburetor, be sure . Once the idle mixture is set, fine tune the engine is at operating temperature, (choke engine‘s idle speed; if necessary, by fully off) air cleaner is removed and vacuum readjusting the idie speed screw. (Note: lines are plugged off. Turning "in" (clockwise) the idle speed screw will increase engine speed. Turning "out" (counterclockwise) the idle speed . The Weber DGV/DGAV idle speed screw screw will decrease the engine speed.} should be adjusted to its "preliminary" set— point before adjusting the idle mixture. To . If idle speed is reset, go back and repea set the idle speed screw follow these steps: steps 6 and 7. Back "out" the idle speed screw until the tip of the screw no longer touches the throttle IDLE SPEED SCREW lever. Then slowly turn the screw in until it just comes in contact with the throttle lever.

. From the "contact" position, turn the idie speed screw "in" one (1) full turn.

. If a tachometer is available, install it prior to starting the engine. If a tachometer is not available set idle mixture "by ear."

. Start engine, be sure choke is not engaged, IDLE MIXTURE and proceed to adjust the idle mixture. SCREW

. Turn the idle mixture screw "in" (clockwise) until the engine RPM begins to fluctuate on If after following these instructions you require the tachometer. (If adjusting by ear, until a further assistance, please call the Weber Tech. noticeable drop in speed is heard.) Service dept. at the phone numbers listed below, during normal business hours. .. Back "out" (counterclockwise) the idie mixture screw slowly, until the engine idle becomes steady. Try to obtain the leannest setting 1—800—WEBER US (Qutside CA) without affecting the idle speed. If necessary, (932—3787) repeat steps 6 and 7 until the best setting is achieved. 1—800—WEBER CA (CA Only) (932—3722)

WEBER DISTRIBUTION 9/85 445.80551N